Isolation Kernel Integrity
Isolation Kernel Integrity refers to the assurance that the security boundaries of a trusted execution environment have not been breached or modified. It involves rigorous verification of the microkernel or secure monitor that manages the enclave, ensuring it remains immutable and free from unauthorized changes.
If the kernel that enforces isolation is compromised, the entire security model collapses. Maintaining this integrity requires constant monitoring, secure boot processes, and formal verification of the underlying code.
It is a foundational concept for ensuring that the hardware-based security features are actually performing as intended. Without this integrity, the system cannot guarantee the confidentiality or authenticity of the processes running within the enclave.